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Overall Niche Grade
How are grades calculated?
  1. Academics
  2. Diversity
  3. Teachers
  4. College Prep
  5. Clubs & Activities
  6. Sports
20950 SW Rock Creek Rd
Sheridan, OR 97378
(503) 843-3521


Application Deadline
Application Fee
Interview Required
Required/Recommended Tests


Yearly Tuition
Tuition is for the highest grade offered and may have changed for the current school year. For more information, please contact the school.
Boarding (Tuition + Boarding)
Received Financial Aid
Average Financial Aid
From Delphian School

Delphian's story began in 1974, when a group of individuals purchased property in Sheridan, Oregon and got to work building a new educational model. Delphian School’s goal, and mine, is a civilization based in reason.

While a lofty goal, I believe it is one held in common by parents, students, educators and individuals of goodwill. Civilizations rise and fall on the contributions and accomplishments of individuals. Providing an educational program that preserves and encourages individuality while building character traits like Knowledge, Ethics, Integrity and Leadership (the four points of Delphian’s logo) is how the Delphian School works to achieve its goal.

Since 1976, Delphian School has been working to establish and refine its unique approach to education. For forty years, we have been at the forefront of a movement that is now gaining momentum among the broader educational community—that of competency-based education.

Delphian School Rankings

Niche ranks nearly 100,000 schools and districts based on statistics and millions of opinions from students and parents.


Average Graduation Rate
Average SAT
17 responses
Average ACT
10 responses

Culture & Safety

of students agree that they feel safe at their school.6 responses
of students agree that they like their school and feel happy there.6 responses
What are your favorite school events or traditions?
Based on 41 responses
  • Parents Weekend
  • Alumni Weekend
  • Sports Games
  • All Weekend Activities
  • Dance-A-Thon
  • Dances


    Based on racial and economic diversity and survey responses on school culture and diversity from students and parents.
    of students and parents agree that students at this school are competitive.9 responses
    of students and parents agree that students at this school are creative and artsy.9 responses
    of students and parents agree that students at this school are athletic.9 responses


    Student-Teacher Ratio
    of students and parents agree that the teachers give engaging lessons.14 responses
    of students and parents agree that the teachers genuinely care about the students.14 responses
    of students and parents agree that the teachers adequately lead and control the classroom.14 responses

    Clubs & Activities

    Clubs & Activities
    Based on student and parent reviews of clubs and activities.
    Girls Athletic Participation
    Boys Athletic Participation
    of students and parents agree that there are plenty of clubs and organizations for students to get involved in.5 responses
    of students and parents agree that clubs and organizations get the funding they need.5 responses
    of students and parents agree that lots of students participate in clubs and organizations.5 responses

    Delphian School Reviews

    71 reviews
    All Categories
    This is an amazing school! I arrived in late 2013, and I graduated in the class of 2017. My years here were magical and life changing. I become a more competent and responsible person, and the opportunities I received in the program were phenomenal. If you want your child to succeed, then the best school for them to attend is this one. I just finished writing my book Comedy Is No Joke! The Stand-up Comics' Guide to Success, and I am moving my comedy show to LA later this September. I wouldn't have been able to accomplish these feats without the knowledge I gained at Delphian.
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    Before coming to Delphian I knew nothing about where life would take me.
    I thought of myself as a pessimistic person. I was overwhelmed with books and lectures. ​I knew I could do so much more, but I couldn’t. I started at the Delphian School four years ago and finally had hope. Delphian has been a journey. It was a journey not like any other journey. It’s been a process and a discovery. I was shown not only the world, but how I could fit into it. ​It’s about challenging yourself a little bit more when you are too tired to stand up. It’s about providing encouragement when you fall. It’s about alerting you when you are lost. It’s about waking you up before everything is too late.
    ​Delphian an ​has been the shining star in my life! I will be forever grateful.
    ​Yesterday, I was a student from the Delphian School. Today, I am a proud graduate. I would recommend Delphian to anyone.
    ​. ​
    Before I came to Delphian, I was studying in a private school in Taiwan. Everyone was focusing on testing and getting into a good high school. The only subjects that I was good at was English and Mandarin. I did terrible on all the other subjects. Whenever I didn’t do well on my tests or exams, my teachers and my parents got mad. Each report card ended in hour of arguing with my parents.

    I’m currently a junior at the Delphian School. I really like Delphian because of its educational system. Delphian is a proficiency-based education so a big part of it is hands-on projects and really understanding everything we study before moving on. It gives students a lot of project opportunities and opportunities to experience real life as part of the education.

    My favorite part about campus life is that everyone is a huge family. There’s no bullying or anything like that at the school. Students are really friendly with everyone and the staff members are also really nice and caring.